Delayed_job is a background job server that integrates well with Rails and ActiveRecord.
delayed_job是一个后台作业服务器，它能够与Rails和ActiveRecord整合。
It then gets the instance ID of the last-run job server and queries to get the startup time.
然后获取最后运行的作业服务器实例ID，并查询启动时间。
If the server is a job server, the script checks to find out what kind of instance it is running on.
如果这个服务器只是一个作业服务器，那么脚本就会检查它运行在哪一个实例上。
Index service on the job server is not active.
作业服务器上的索引服务未工作。
The Task Scheduler Service is not running on job server.
“任务计划程序服务”没有在作业服务器上运行。
Fail to render scheduler, it is most probably due to the failure of contacting job server.
未能呈现计划程序，最可能的原因可能是联系作业服务器失败。
Backup image is from a Job Server, but there is no Job Server configured in the farm.
备份映像来自作业服务器，但是未在该服务器场中配置作业服务器。
Backup image is from a Job Server, but there is no Job Server configured in the farm.
备份映像来自作业服务器，但是未在该服务器场中配置作业服务器。
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